Herb Gross introduces the exponential function, discussing the rate of growth of the output for each unit change in input and motivates the definition of the meaning of fractional exponents. Important applications are scientific notation and exponential growth of unfettered populations. Herb Gross describes the benefits of self-paced learning of Algebra and stresses the relevance of the topics that are covered in this course. This material and much more is also available online at www.adjectivenounmath.com.